Of course, they would try to do so, but escalating rental costs would become less attractive to the consumer at a certain point.
My point is this: there's always a huge debate over how to stop walking reservations, spec reservations, and commercial renting. There is much wringing of hands and gnashing of teeth about these practices, and yet every suggestion to mitigate these things is met with disdain by some.
Do I think the proliferation of reservation walking, spec reservations, and commercial renting is a problem? Yes, I do. And, if the new, additional language in the CFW docs is any indication, so does DVC. It will be interesting to see what they do, if anything, with this new language.